OTC 2L 8s

Omnitetrachordal MODMOS scale
2L+8s
10 tones (4+2+4)

Pajara MODMOS. Best at lower ratios of L/s.

P = 1.8849491924
Q = 4.8274237885 (4/3 = L+2.5s)

L = 120.00 to 600.00 cents (192.18 cents @ P, 328.12 cents @ Q)
s = 0.00 to 120.00 cents (101.96 cents @ P, 67.97 cents @ Q)

9/8 = 2s (0.00 to 240.00 cents)
4/3 = L+3s (480.00 to 600.00 cents)
MOS generator = s (0.00 to 120.00 cents)
MOS period = 1/2 octave (600.00 cents)

notable EDOs: 12, 14, 16, 22, 26

LssssLssss (MOS, not OTC)
     ||   
LsssssLsss (OTC MODMOS) - gen chains 6,4

modes:

	sssL ss sssL		Standard Pentachordal Minor
	ssLs ss ssLs		-
	sLss ss sLss		Alternate Pentachordal Major
	Lsss ss Lsss		-
ss sssL sssL			-
ss ssLs ssLs			Alternate Pentachordal Minor
ss sLss sLss		sssL sssL ss	-
ss Lsss Lsss		ssLs ssLs ss	Standard Pentachordal Major
		sLss sLss ss	-
		Lsss Lsss ss	-

(The names of the modes are Paul Erlich's - see http://lumma.org/tuning/erlich/erlich-decatonic.pdf.)

See also

• Omnitetrachordality
• Gallery of omnitetrachordal scales

References

• Noted as omnitetrachordal by Paul Erlich no later than 2002. See tuning-math list messages 3685 and 10987.